I would like to ask an advise for following:

Lets say I have a DS3232 RTC connected by I2C to some MCU. The maximum allowed I2C bus speed is 400KHZ. And I need to read time (HH:MM:SS) from it. It will be THREE SEPARATE REQUESTS for each part (hours, minutes and seconds). My concern: what if I start to read time at the edge, when it will change itself inside of DS3232 ? Potentially, I could get weird results, like hours and minutes stay the same, but seconds has changed. Or even worth - hours is the same, but seconds and minutes has changed. Is there any method to read all three values (HH:MM:SS) by one single requests ? Or is there any other workaround for this issue ? Or it is not issue at all ? Thanks !


--
WBW,

V.P.
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